Finding the Fourth Proportional to 858,975.75, 1,287,894.95 and 409,765.95
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Solution
The fourth proportional to 858,975.75, 1,287,894.95 and 409,765.95 is: 614,377.65
Step by Step Solution
- Step 1: Write the proportion equation
858,975.75 : 1,287,894.95 = 409,765.95 : x - Step 2: Convert to fraction form
858,975.75/1,287,894.95 = 409,765.95/x - Step 3: Cross multiply
858,975.75x = 1,287,894.95 × 409,765.95 - Step 4: Simplify right side
858,975.75x = 527,735,499,479.68 - Step 5: Solve for x
x = 527,735,499,479.68/858,975.75 - Step 6: Final answer
x = 614,377.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.